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G-40 Feldspar

Description: Potash/sodium/calcium Feldspar

Oxide Analysis Formula
CaO 0.80% 0.08
MgO 0.05% 0.01
K2O 10.40% 0.63
Na2O 3.00% 0.28
Al2O3 18.00% 1.01
SiO2 67.56% 6.45
Fe2O3 0.08% -
LOI 0.16%n/a
Oxide Weight 573.12
Formula Weight 574.04

Notes

G-40 is a potassium / sodium / calcium aluminum silicate used as a source of alumina and potash in specialized glass batch formulations requiring higher potassium levels. Carefully beneficiated using the froth flotation process, G-40 Feldspar offers low iron oxide and high alkali oxide content per unit of alumina.

Related Information

Links

URLs http://www.zemex.com/feldspar/g40spar.html
G40 Data Sheet
Materials G-20 Feldspar
Materials Potash Feldspar
Typecodes Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies.

Data

Bulk Density lbs/cu. ft. (Packed) 90
Sieve Analysis Dry +30 mesh: tr +40 mesh: 0.3 +200 mesh: 94.8
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